Add HttpResponseWrapper

src/Codehard.Functional/Codehard.Functional.AspNetCore/ErrorWrapperActionResult.cs

@@ -1,5 +1,6 @@
 using System.Dynamic;
-using Microsoft.AspNetCore.Http;
+using System.Net.Mime;
+using System.Text;
 
 namespace Codehard.Functional.AspNetCore;
 
@@ -65,9 +66,14 @@ await this.Error.Data
                 ar => ar.ExecuteResultAsync(context),
                 None: async () =>
                 {
-                    context.HttpContext.Response.StatusCode = (int)this.Error.StatusCode;
-                    context.HttpContext.Response.ContentType = "text/plain";
-                    await context.HttpContext.Response.WriteAsync(context.HttpContext.TraceIdentifier);
+                    var responseWrapper = new HttpResponseWrapper(context.HttpContext.Response)
+                    {
+                        StatusCode = (int)this.Error.StatusCode,
+                        ContentType = MediaTypeNames.Text.Plain
+                    };
+
+                    await responseWrapper.WriteAsync(
+                        context.HttpContext.TraceIdentifier, Encoding.UTF8, CancellationToken.None);
                 });
 
         return;

src/Codehard.Functional/Codehard.Functional.AspNetCore/HttpResponseWrapper.cs

@@ -0,0 +1,42 @@
+using System.Text;
+using Microsoft.AspNetCore.Http;
+
+namespace Codehard.Functional.AspNetCore;
+
+public interface IHttpResponseWrapper
+{
+    Task WriteAsync(string text, Encoding encoding, CancellationToken cancellationToken);
+    IHeaderDictionary Headers { get; }
+    int StatusCode { get; set; }
+
+    string ContentType { get; set; }
+}
+
+public class HttpResponseWrapper : IHttpResponseWrapper
+{
+    private readonly HttpResponse response;
+
+    public HttpResponseWrapper(HttpResponse response)
+    {
+        this.response = response;
+    }
+
+    public Task WriteAsync(string text, Encoding encoding, CancellationToken cancellationToken)
+    {
+        return response.WriteAsync(text, encoding, cancellationToken);
+    }
+
+    public IHeaderDictionary Headers => response.Headers;
+
+    public int StatusCode
+    {
+        get => response.StatusCode;
+        set => response.StatusCode = value;
+    }
+
+    public string ContentType
+    {
+        get => response.ContentType;
+        set => response.ContentType = value;
+    }
+}

src/Codehard.Functional/Codehard.Functional/EnumerableExtensions.cs

@@ -1,5 +1,5 @@
 // ReSharper disable once CheckNamespace
-namespace LanguageExt;
+namespace System.Linq;
 
 /// <summary>
 /// Extension methods for working with IEnumerable collections.